Center jaw for mantle-sewing machines.



.s. 001m. CENTER JAW BOB. MAN'lL-E SEWING MACHINES.

Arrmcuion 11.31) MAY 1, 1908.

918,735. Patented Apr. 20, 1909.

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UNITED STATES PATENT oFFroE.

SAMUEL OOHN, OF NEW-YORK, N Y., ASSIGNOR TO MACHINE MANTLE SEWINGCOMPANY,

OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

Specification of Letters Patent.

Patented April 20, 1909.

Application filed May 1, 1908. Serial No. 430,274.

To all whom it may concern:

Be it known that l, SAMUEL OonN, a citizen of the United States, andaresident of the city, county, and State of New York, have invented anew and useful Improve ment in Center Jaws for Mantle-Sewing Machines,of which the following is a specification.

The object of my invention is to provide what is known as a wirejaw inwhich it will be practically impossible to entangle the mantle when itis placed on this j aw regardless of the rapidity with which it may beplaced and also to hold the mantle properly while in the machine. Thisobject is accomplished by my invention, one embodiment of which ishereinafter disclosed.

For a more particular description of my invention reference is to be hadto the accompanying drawings forming a part hereof in which,

Figure 1 is a plan view of my improved jaw. Fig. 2 is a sectional viewtaken on the line 22 of Fig. 1, looking in the direction of the arrows.

Throughout the various views of the drawing similar reference charactersdesignate similar parts.

My improved jaw 1 is provided with a base 2 composed of the two bars 3and 4, the bar 4 being the upper bar. This bar is slotted to receive theupwardly extending jaws or fingers 5, which are preferably made of wire,and have their upper ends bent inward so that they converge and areseparated at the top by a space which is substantially the same as thediameter of the wire of which they are composed. Seven of these wirejaws or fingers 5 are shown, but it is obvious that any number may beemployed.

Immediately below these jaws or fingers 5 and fixed in the same planestherewith are the stops 6 which are preferably formed of wire and bentas shown in Fig. 2. These stops 6 are made round in cross section exceptwhere passing through recesses in the plates 3 and 4 so that these stopswill not turn or shift their position in said recesses whereby each stopis fixed in its recess.

A guard 7 is bent so as to have its ends fixed in the plate 4 andthroughout the greater portion of its length it is substantiallyparallel with this plate 4 and above the openings between the ends ofthe jaws or fingers 5 and separated therefrom any suitable distance butpreferably about as shown in Fig. 2. The upper ends of the extreme jawsor fingers are converged toward the other jaws or fingers as shown at 8so as to bring these jaws or fingers well under the guard 7 at theirupper extremities. The plates 3 and 4 may be held together by anysubstantial means, but are preferably united by screws, as indicated indotted lines.

In view of the foregoing, the operation of my improved center jaw willbe readily understood. Assuming it to be mounted in any suitablemachine, such as that shown in my Patent No. 678,542, ranted July 16th,1901. The mantle is p aced so that the opening at the lower end of thewebbing is over the guard 7. As this mantle is lowered over the centerfingers 5' which have their upper ends under this guard 7, they enterthe interior of the Webbing without engaging the same thereby avoidingall delays incident to the improper engagement of the Webbing by thefingers or jaws 5.

While I have described and shown only one embodiment of my invention, itis obvious that it may be embodied in various forms 1 all of which comewithin the scope of the annexed claim.

What I claim is:

A center jaw for mantle sewing machines, comprising a base, bent wirefingers having their central portions passing through said base, saidfingers extending upwardly and having their upper ends converging so asto leave a space between said ends substantially equal to the diameterof said fingers, and a guard, made of a single piece of wire, secured insaid base and having its upper side substantially parallel to said baseand located over the openings between the ends of the fingers,substantially as described.

Signed at New York cityNew York this 29th day of April, 1908.

SAMUEL COHN.

Witnesses:

Gus. I. ARMow, BLANOHE V. MAHAN.

